Something that has been on the todo-list for a while was to take a proper look inside the fuel tank. I got my hands on an endoscope and to my horror found this huge blob of something on the bottom. Had to get it out!

So I had to get the fuel tank out and bring it home for cleaning. Pretty easy if you are able to empty it completely first.

So I took the tank home and emptied the rest of the diesel in some jugs. The last bits were all black goo. Then I used a pressure washers with warm water to rinse the tank multiple times until clean water ran out.

To help dry the fuel tank, I used the blow function on my wet vacuum and let it run for half an hour or so. Nice and clean now!